database - MYSQL Join 2 tables with 2 relations table -


hi need data database can't figure out how do is...

they have "boutiques" tables , "boutiques_categories" , relation table between them name "boutiques_categories_categories"

here how setup :

boutiques id    name 1     x_boutiques2_name 2     y_boutiques_name  boutique2 id   name 1    x_boutiques2_name 2    y_boutiques2_name  boutiques_categories id   name 1    x_categorie_name 2    y_categorie_name  boutiques_categories_categories boutique_id              categorie_id x_boutique_id            x_categorie_id y_boutique_id            y_categorie_id

i want create sql merge , print csv of data :

export boutiques_id    boutique_name     boutiques_categories_categorie_name boutiques2_id   boutique2_name    boutiques_categories_categorie_name

i trying union 2 table

select a.*  boutiques  union select b.* boutiques2 b

and it's working need join categorie name , can't figure out how it. tried :

select a.*  boutiques  union select b.*  boutiques2 b   left join    boutiques_categories bc on bc.id =     (      select bcc.categorie_id       form        boutiques_categories_categories bcc       bcc.boutique_id = bc.id    )

but mysql error can't resolve.

#1242 - subquery returns more 1 row

thank time.

you can union (or union all, depending on data want) boutiques , boutique2 derived table, , join boutiques_categories through boutiques_categories_categories.

the table data included in question doesn't seem accurate though. specifically: boutiques_categories_categories containing boutique_id , categorie_id values don't match id columns of associated tables. i'm going assume boutiques_categories_categories have int id values. if not case, please clarify in comments, , can adjust query appropriately.

give query try, , see if returns data expect:

select      b.id, b.name, c.name     -- boutiques rows unioned tables     (         select id, name boutiques         union         select id, name boutique2     ) b     -- join in boutiques_cateogires_categories     join boutiques_categories_categories cc         on (b.id=cc.boutique_id)     -- join in boutiques_categories     join boutiques_categories c         on (cc.categorie_id=c.id)

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